Same great design as our Double Layer mid-weight socks, except we substitute ThermaStat® in place of Dri-WRIGHT™
**Only size available XLarge**
*Free First Class shipping within the US
Inner Layer: 70% ThermaStat® Polyester, 30% Nylon
Outer Layer: 68% ThermaStat® Polyester, 28% Nylon, 4% Lycra®
Had same wright double layer socks for over 10 years. No ribbed socks that create problems for me. Very circulation friendly!!!